Home / 81,086.73-111,881.70-47,075.64

Finding the Fourth Proportional to 81,086.73, 111,881.70 and 47,075.64

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Solution

The fourth proportional to 81,086.73, 111,881.70 and 47,075.64 is: 64,953.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,086.73 : 111,881.70 = 47,075.64 : x
  2. Step 2: Convert to fraction form
    81,086.73/111,881.70 = 47,075.64/x
  3. Step 3: Cross multiply
    81,086.73x = 111,881.70 × 47,075.64
  4. Step 4: Simplify right side
    81,086.73x = 5,266,902,631.79
  5. Step 5: Solve for x
    x = 5,266,902,631.79/81,086.73
  6. Step 6: Final answer
    x = 64,953.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.